Can I switch from 92-octane gasoline to 95-octane gasoline if I have been using 92-octane all along?

[DeOscar]

It is possible to switch from 92-octane gasoline to 95-octane gasoline, but it is not recommended for long-term use. The reason is that mixing different octane ratings can lead to incomplete combustion, resulting in carbon deposits and shortening the engine's lifespan. Gasoline octane ratings are classified based on the octane number, which represents the ratio of the gasoline's anti-knock properties compared to standard gasoline. A higher octane number indicates stronger anti-knock performance, but a higher octane rating does not necessarily mean better performance. The appropriate gasoline octane should be selected based on the engine's compression ratio. Gasoline is a volatile, flammable hydrocarbon mixture liquid derived from the fractional distillation, cracking, or pyrolysis of petroleum. At room temperature, it appears as a colorless to pale yellow, easily flowing liquid that is difficult to dissolve in water and highly flammable.